# This is an automatically generated file.
# DO NOT EDIT or your changes may be overwritten
import base64
from typing import List
from xdrlib import Packer, Unpacker
from ..exceptions import ValueError
from ..type_checked import type_checked
from .hash import Hash
from .transaction_envelope import TransactionEnvelope
__all__ = ["TransactionSet"]
[docs]@type_checked
class TransactionSet:
"""
XDR Source Code::
struct TransactionSet
{
Hash previousLedgerHash;
TransactionEnvelope txs<>;
};
"""
def __init__(
self,
previous_ledger_hash: Hash,
txs: List[TransactionEnvelope],
) -> None:
if txs and len(txs) > 4294967295:
raise ValueError(
f"The maximum length of `txs` should be 4294967295, but got {len(txs)}."
)
self.previous_ledger_hash = previous_ledger_hash
self.txs = txs
def pack(self, packer: Packer) -> None:
self.previous_ledger_hash.pack(packer)
packer.pack_uint(len(self.txs))
for tx in self.txs:
tx.pack(packer)
@classmethod
def unpack(cls, unpacker: Unpacker) -> "TransactionSet":
previous_ledger_hash = Hash.unpack(unpacker)
length = unpacker.unpack_uint()
txs = []
for _ in range(length):
txs.append(TransactionEnvelope.unpack(unpacker))
return cls(
previous_ledger_hash=previous_ledger_hash,
txs=txs,
)
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> "TransactionSet":
unpacker = Unpacker(xdr)
return cls.unpack(unpacker)
def to_xdr(self) -> str:
xdr_bytes = self.to_xdr_bytes()
return base64.b64encode(xdr_bytes).decode()
@classmethod
def from_xdr(cls, xdr: str) -> "TransactionSet":
xdr_bytes = base64.b64decode(xdr.encode())
return cls.from_xdr_bytes(xdr_bytes)
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return (
self.previous_ledger_hash == other.previous_ledger_hash
and self.txs == other.txs
)
def __str__(self):
out = [
f"previous_ledger_hash={self.previous_ledger_hash}",
f"txs={self.txs}",
]
return f"<TransactionSet {[', '.join(out)]}>"